Copyholder



Feb. 17, 1942.

P. P. GLASSEY COPYHOLDER 3 Sheets-Sheet 1 Filed Au 14, 1940 it. In 444 kv /4 InvEnTuR PHILIP F BLASSEY ATTORNEY Feb. 17,1942. RGLASSEY-2,273,486

COPYHOLDER Filed Aug. 14, 1940 3 Sheets-Sheet 2 InvEm 11 PHILIP PBLASSEY ATTORNEY Feb. 1 1942. R'RGLASSEY -2,273,486

COPYHOLDER Filed Aug. 14, 1940 3 Sheets-Sheet 3 Inv EH T on PHILIP PGumssr ATTORNEY Patented Feb. 17, 1942 {TED NT OFFICE 14 Claims. (c1.fee-a9 This invention is concerned with improvements in copy holdingmachines and specifically relates to certain improvements in copyholding machines similar to the machine described in my copendingapplication for United States Letters Patent, Serial No. 270,894. r

One of the objects of my invention is to provide means for adjusting'thespacing of the mov able marker to coincide directly with the spacing ofthe copy mounted on the machine.

Another object of my invention is to provide means for locking themarker to the actuating mechanism while spacing adjustment is being madeso as to facilitate the accurate adjustment of the marker spacingtocoincide directly to the spacing of the copy and, further, to return themarker to its starting position after the adjustment has been made.

A further object of my invention is to provide a simple adjustment meansfor changing the marker spacing.

Another object of my invention is to provide a book support which isconstructed and arranged to adjust itself to books of varyingthicknesses and. to firmly clamp a book which is opened at such a pointthat one'portion of the opened book is thicker than the remaining pertion.

Still another object of my invention is to pro-. vide a booksupport thatis likewise adapted to box with the front plate of the clutch boxremoved.

Figure 7 is a sectional view of the clutch box taken on the line 1-4 ofFigure 6.

Figure 8 is an enlarged detail of the clutch box mechanism with theclutch levers in the locked position, the front plate of the clutch boxbeing removed.

Figure 9 :is an enlarged side elevation of the clutch box with themechanism being in a position similar to that shown in Figure 6;

Figure 10 is an enlarged side elevation of the clutch box with themechanism being, in the position shown in Figure&

Figure 11 is an enlarged sectional View of the adjusting means forvarying the marker spacing.

Figure 12 is an enlarged perspective view of the adjusting mechanismspring clamp.

Figure 13 is a view taken on the line l3l3 of Figure 2, parts being insection and parts broken away, showing details of the marker sup- 1port.

retain the marker against outward displacement when ,the marker is atthe lower extremity of its zone of travel.

Another object of my invention is to provide .a marker adjustable tovarious thicknesses of books or copy held on the machine. 7

Other objects and advantages will appear from the followingspecification and the accompanying'drawings, in which: v

Figure 1 is a perspective viewof the copyzholder of my invention.

Figure 2 is a side elevation of my copy holder in the operatingposition, parts being broken away.

,Figure 3 is a section through the easel taken onthe, line 3-3 of Figure4, showing-details of the book supporting clamp.

Figure 4 is an elevation of the easel, parts being broken away, taken onthe line :4-4 of Figure 2. j

Figure 5 is a .plan view, partly in section and Figure 14 is a detailtaken on the line M-M of Figure 13.] v

. My improved copy holder, as illustrated in the attached drawings,comprises generally a base 20, an easel 2| pivotally mounted thereon andprovided with suitable supports for notes, documents or books which areto be copied. A markeri 22 is provided for indicating the line of copybeing transcribed. Actuating mechanism, generally indicated by thenumeral 23, is provided for moving the marker in substantially equalsteps longitudinally of the easel.

In the preferred form, the base 29 is an L- shaped vmember comprisingtwo channel shaped sheetmetal stampings which are welded together.

a The rear arm :24 of the base is provided with apair .of easel supports25--25 which, in this in- It is of course obvious that the base might bemade of other material such as cast iron or might be .made as a singleunitary stamping.

stance, are sheet metalstampings generally triangular in shape. Thelower edge of each of the supports 25 is provided with aflange 26 whichis spot welded to the-base 24.

parts being broken away, taken on thejline of Figure 2.

Figure 6 isan enlarged detailof the .clutch tially triangular flange 34.The bottom edge 35 of each of the flanges 34 acts as a limit stop togovern the backward movement of the easel when it is brought to theraised position. Lugs 35 are stamped out of the flanges 3d and bentforwardly of the legs 3!. The lugs 38 and the supports are provided withsuitable apertures and pivotally joined together by means of the pins3'|-31 and self-locking washers 3838. Each of the supports 25 isprovided with an aperture 39 located toward the rear of the support andspaced upwardly from the base a suitable distance. The flanges 34 areeach provided with an outwardly stamped substantially circular button 45arranged to cooperate with the apertures 39 so that in the raisedposition of the easel, the buttons 45 enter the apertures 39 toyieldingly lock the easel in its raised or operating position. Bypulling forward on the upper edge of the easel, the buttons 46 may besprung out of the apertures 39 and the easel folded forward on the base2!? so that the machine will occupy a minimum amount of space when notin use.

A clamp located adjacent the upper edge of the platen and more or lesscentrally thereof, is provided for holding flat sheets or documentswhich are tobe copied. In the preferred form, the clamp 55 is shapedsubstantially as shown in Figure 1 and is provided with two backwardlyextending lugs 46 which are pierced to accommodate a pivot pin H. Theplaten 30 is provided with two outwardly extending lugs 48 which arelikewise provided with apertures to support the pin 5?. A suitable coilspring (not shown) is provided to press the lower edge 58 of the clampagainst the platen to frictionally engage a flat sheet or document. Torelease the clamp 65, it is only necessary to press on the upper portionwhen the lower edge 58 will swing outwardly about the pivot 47.

For supporting a stenographers notebook on the easel, a support 58 isprovided which is .pivotally mounted at its left-hand end in the socket5| which is suitably secured to the face of the platen 30. The supportis loosely mounted in the socket 5! so that it may be removed, ifdesired, when copying work held in the clamp 45.

For the convenience of those who wish to copy from bound volumes, I haveprovided a novel book support 55 which, in the preferred form, is shapedfrom a piece of heavy steel spring wire substantially as shown inFigures 1, 2 and 3. The clamping portion 56 of the support 55whichengages the pages of the book to be supported, is preferably curvedoutwardly in an arc, as clearly shown in Figure 3. At each end of thearc the support is bent downwardly a substantial distance, asillustrated in Figure 1 at 5']. The wire is then bent inwardly as at 58,Figure 3, and then backwardly as at 59 in Figure 2. The portions 58 and59 form a support to prevent the book from sliding downwardly. At therear ends of the portions 59, the wire is bent upwardly to form an are60, as shown in Figure 2. The ends 5| of the wire are then bent so thatthey lie parallel to the back of the easel 2!. The ends 5| are securedin the sockets 52 which, in turn, are fastened to the back of the easel2| by suitable means, such as spot welding. The bending and tensioningof the spring wire which forms the support 55 is such as normally tohold the support 55 in the position shown in the full lines in Figure 3.That is, the vertical portions 51 are spaced outwardly from the easel asubstantial distance for a purpose presently to be described.

To support a book on the easel 2!, it is only necessary for the operatorto grasp the portion 56 and pull it outwardly against the tension of thepring arcs 69. The book is then inserted behind the portions 56 and 57so that the lower edge of the book rests on the portions 58 and 59. Theoperator then releases the portion 56 which springs back against thebook to hold it firmly in place. If the book is opened at a point otherthan the center, it is obvious that one portion of the open book will bethicker than the other. For example, in copying from a law report whichin many cases is two to three inches in thickness, it may be necessaryto copy an excerpt from the latter part of the book. In that case, whenthe book is placed against the easel, it may well be that the portion tothe left will be two inches thick while the portion to the right may beonly one inch thick. In such case, my spring support 55 will adjustitself to the different thicknesses and the dashed lines in Figure 3show the support with the left-hand side brought further away from theeasel 2| than the right-hand side.

The mechanism for moving the marker 22 longitudinally of the easel 2|and the means for adjusting the amount of movement of the marker willnow be described.

A pair of supporting brackets are afiixed to the face of the platen 35adjacent the right-hand side thereof, one bracket being adjacent the topof the platen and the other adjacent the bottom of the platen. Eachbracket 55 is provided with suitable apertures to support the fixedguide rod 65 and the movable actuator rod- 61 in spaced relation to theplaten. The lower end of the movable actuator rod 61 is provided with anaperture 68 to pivotally receive the bent over end 69 of th connectinglink 10. A self-locking spring washer II is provided to secure theportion 69 in the aperture 68. The opposite end of the connecting link15 is likewise provided with a bent over portion which is pivotallysecured to one end of the bell crank lever 12. The bell crank I2 issecured to the bracket I3 by means of a pivot Hi. The bracket 13 issuitably secured to the forwardly extending arm of the base member 28adjacent the right-hand leg 31 of the easel 2|.

An operating key 15 which is roughly triangular in shape is pivotallymounted by means of the pin 16 to the bracket 11 which, in turn, issecured to the forwardly extending arm of the base 20 adjacent theforward end thereof. A portion of the key 15 extends to the rear of thepivot 16. This portion is provided with a substantially vertical arcuateslot 18. The radius of the are 18 is determined by the length of theconnecting rod presently to be described. The portion 15' of the keybelow the slot 18 constitutes a stop in conjunction with the surface ofthe base 20 to limit the movement of the key about the pin 16 in aclockwise direction, as viewed in Figure 2.

The forwardly extending portion 79 of the key is provided with a fingerpiece 80 which is suitably secured thereto. A dependent portion 8| maybe provided to act as a stop in conjunction with the base member 25 tolimit the counterclockwise rotation of the key about the pin 16, as seenin Figure 2. The portions l5 and BI of the key 15 definitely limit thekey motion to a constant movement. The spring 82 is provided toyieldingly urge the key 15 to its upward normal position.

Mounted in the slot 78 is an adjustable slide block 85 best seen inFigures 11 and 12. In the aeraese preferredrorm, this slide blockassembly com-- prises aapivot member8fi which is .provided with anenlarged head B'I'Wa reduced collar portion-88, the diametero'f whichislgreater than the width of the slot 1.8,.anda guide portion 89 whichhas a diameter substantially equal to the width-of the .slot'18 but issmall enough to slide freely in bend-f the U, the width of the reducedportion 91 being, Slightly less than'thewidth of the slot I8. Thereduced portion 9Iis joined to the end portions 96 by the square.shoulders 98. An aperture 9.9 is provided atthebottom of the U toaccommodate the. portion 90 of the member 86-.

A connecting rod. I00. is provided for connecting the slide block 85 tothe bell crank-I2. One end of the rod I90 is flattened and provided withan aperture to accommodate a pin IIJI to pivot ally join'the rear end ofthe rod I99 to the bell cranklever I2. Theforward end of the rod I09 isflattened and provided with an aperture I92 sufiiciently large toaccommodate the collar portion 88 of the member 86.

In assembling, the locking member 95 is inserted in the slot 18 so thatthe reduced portions 91 of the piece 95 are free to slide in theslot'IS. The member 86 is inserted in the aperture I82 of the rod I00 sothat the aperture I02 is seated on the collar portion 88. The conicalcollar 92 is then inserted in the bottom of the U-shaped piece 95 whichprojects from the left-hand side of the key I5. The member 86 is theninserted in'the slot '78 with the guide portion 89 extending through theslot and into the conical member 92, and with the portion 98 projectingthrough the aperture'99 .of the locking member 95. whole assembly may besecured by means of a self-locking spring washer I03 placed on theportion 99. The member 95 isbent and tensioned so that the shoulders 98of the reduced portions '91 frictionally engage the sides of the keyadjacent the slot I8, thus effectively looking the slide member 85against displacement in the slot 'i8. The position of the member i85maybe adjusted in the slot I8 by pressing the'portions 96 of the lockingmember 95 together. When the portions 96 are pressed together, theshoulders 98 will be disengaged from their contact with the side of thekey I5 and thus permit The.

"traveler is. provided with a three-point supactuator clutch lever I29and springIZI.

the free movement of the member 85 in the slot I8;

As has been noted above,the amplitude of motion of the key I5 is fixedby the stop portions I5 and 8|. The amount of motion transmitted by theconnecting rod I00 to the actuator'rod B'I depends upon-the setting ofthe slide member 85 in the slot I8. When the member 85 is positionedadjacent the bottom of the slot I8, very little horizontal displacementof the'conne'oting rod I08 will take place when the key I5 is depressed.This is because the slot I8 is displaced to-one side of the pivot ofthe'key and themember85 moves on anarc of short'radius, with the greatercomponent of motion being vertical. On the other hand, when the member85 is moved to a position near the top of the slot I8, movement of thekey I5 moves the member 85 on an arc v.of' comparatively great radius,and over a of motion is horizontal. It is thus seen that-any degree ofmotion between the maximum and minimum limits may :be transmitted to the.actuator rod 67. g. I

A traveler H0 is slidably mounted on, the rods 66 and 6 1. A travelerIIB oomprisesa substam tially U-shaped member having an upper flange IIIand a lower flange I*I2. The upper flange is provided with an apertureH3, to accommodate thefixedguiderod fifi and an aperture H4 toaccommodate the actuator rod 61. The lower flange is provided with anaperture H5 to accommodatethe .fixed .guide rod 66 but is cut awayadjacent the actuator rod 61. Thus, the

port. n

A marker supporting rod H6; is supported in suitable apertures providedin the upper and lowerfianges I I I -andI I2 and maybesecuredin place bymeans .of a self locking spring washer A pivot pin H8 is secured tothetraveler II-Il.

substantially centrally thereof and projects from the rear surface ofthe front plate. Mounted on the pivotpin H8 is a stop *clutch leverI:I9,.an The entire assembly may be held together'by means of aself-locking spring washer I122;

Referring to Figure 6, the stop clutchlever H9 is preferably formedhaving an elongated body member I23 which is provided with an elongatedslot 124 for mounting-on the .pin H8. The left-hand end of the bodyportion I23 is provided with a flngernplate I25 which is bent at rightangles to the body member I 23 and extends-outwardly beyond the side ofthe traveler H0. The finger :plate I25 is provided with an aperture I26which is slightly larger than'the fixed rod 66 The opposite end of thelever H9 is provided with a locking finger I121. Theouter end of thelocking finger I2]. is formed into a V-shape I-28best shown in Figure 9.:The right- I handsideof the traveler III] is provided with aback-turned flange I39. The rear surface I3I of this flange iscutat anangle to form a cam.

. A notch I32 is provided in this camsurface.

The actuator clutch lever I2!) is similar to the stop clutch lever H9except that it hasno locking finger I21. It is provided with a body.portion I23 having an elongated slot I24 to accommodate the :pin H8 andafinger plate I25 having an aperture I26 to accommodate the actuator rod-61. The left-hand side of the traveler III! has a backwardly turnedflange I33 terminating in a flat surface I34 which limits the upwardmovement of the finger piece I25 to a position Where the stop finger I28 is "engaged in the notch I32. The lower end of the flange I99. islikewise provided with a flat surface I35 to limit the upward movementof the actuator clutch lever I20 to a position when such member issubstantially horizontal. It is to be observed that when the clutchlevers are raised, they do not swingon the pin H8 as a pivot, but slideon the rods 66 and 61 respectivel V cooked at an angle to the fixedguide rod 66 end portion of the are where the greater component theedges of the aperture I26 will thus grip the fixed guide rod and preventthe traveler from being moved upwardly. The actuator clutch lever I20 islikewise jammed on the actuator rod 61. However, if the actuator rod 61is moved upwardly, the actuator clutch lever I20 will lift sufiicientlyto free itself, permitting the actuator rod to slide through theaperture I26. If the actuator rod 61 is moved downwardly, the actuatorclutch I20 will jam on the rod 61 and move the traveler downwardly withthe actuator rod 61. In this case, the stop clutch lever will slidedownwardly on the fixed guide rod 66.

The traveler may be moved to a desired position by inserting the fingersunder the finger plates I25 and I25 and lifting upwardly. This releasesthe clutch levers from their engagement with the respective rods 66 and61 so that the traveler may be slipped freely up or down. The lever I25may be lifted upwardly until the end I28 catches in the notch I32 of thecam surface I3I. This is the position shown in Figure 8. In thisposition, the stop clutch lever is at right angles to the guide rod 66and the aperture I26 will no longer grip the guide rod. At the sametime, the locking finger I21 is sprung backwardly as it travels up thecam surface I3I and will jam the actuator clutch lever I20 backwardsagainst the actuator rod 61, as shown in Figure 10. In this position ofthe stop clutch lever, it is thus seen that the traveler is free toslide either upward or downward on the guide rod 66, while it is firmlylocked to the actuator rod 61.

The marker supporting rod H6 is somewhat the shape of an inverted Jhaving a vertical portion I40 which is mounted in the traveler H0, asdescribed above. A horizontal portion I4I slightly greater than thewidth of the traveler IIII terminates in a downwardly extending portionI42. A pivot member I43 is pivotally mounted on the portion I42 and maybe secured in place by means of a self-locking spring washer. Extendingoutwardly in a horizontal direction from the pivot member I43 is amarker extension rod I44. Rotatably and slidably mounted on the markerextension rod I44 is the marker 22. It is thus seen that the marker 22may lie substantially flat against the platen 30 or be swung outwardabout the portion I40 of the support as a pivot.

Since the support is also pivoted at I42, the portion I4I may be swungoutward, as shown by the dotted lines in Figure 13, about its pivot I 40while the marker extension rod and pivot block I43 permit swinging themarker 22 parallel to the face of the platen. Thus the double jointpermits work of various thickness to' be supported on the platen whilealso permitting the marker to lie flat against the work. If work widerthan the normal capacity of the machine is supported on the platen, themarker 22 may be slid outwardly on the rod I 44 as also illustrated bythe dotted lines in Figure 13.

In the machine of my invention, the movement of the marker may beadjusted for any desired spacing between the maximum and minimum limitsof movement. Further, the spacing of the marker may be adjusted directlyto the line spacing of the copy supported on the machine. In order to dothis, the work to be copied is first mounted on the platen. A flat sheetmay be clamped by the clamp 45. A notebook may be suspended from the rod50, or a bound book may the finger plates I25 and I25 and the travelerthen may be moved at will so as to bring the marker 22 under a line ofthe copy. The stop clutch lever is then moved upwardly so that thefinger end I28 engages in the notch I32. This locks the stop clutchlever H9 in the released position with reference to the guide rod 66 andlocks the actuator clutch lever I20 to the actuator rod 61. Theoperating key I5 is depressed until the stop BI makes contact with thebase 20 of the machine. Portions 66-96 of the member 95 are then pressedtogether permitting the adjustment of the slide member 85 in the slotI8. The slide member 85 is moved either upwardly or downwardly in theslot I8 to bring the marker 22 under the next line of copy on the work.After adjusting the marker to the desired spacing, the portions 96 ofthe locking member 05 are released, thus locking the slide member 85 inthe adjusted position in the slot I8 of the key 75. Upon releasing thekey I5, the spring 82 returns the key to its normal upward positionwhich moves the actuator rod back to its initial position, returning themarker to its original position under the first line of copy. The stopclutch lever is then unlocked by pressing downwardly on the finger plateI25 to bring the end I28 of the finger I21 out of engagement with thenotch I32.

For any and all adjustments of the slide member 85, the length of strokeof the key I5 remains constant while the amount of motion transmitted tothe actuator rod 6'! depends on the setting of the slide member 85 inthe key slot I8.

After the machine is adjusted to the spacing of the work to be copied,the marker may be progressed downwardly of the work in substantiallyequal steps by successive depressions of the key I5. When the key l5isdepressed, connecting rod I00 is drawn forward rocking the bell cranklever I2 so as to draw the connecting link 10 downwardly and move withit the actuator rod 61. On the downward motion of the actuator rod 61the clutch I20 grips the rod and moves the traveler with it. The clutchH9 releases its grip on the rod 66 during the downward movement of thetraveler. When the key 75 is released, it moves upwardly rotating thebell crank lever I2 in the opposite direction, thus lifting theconnecting link I0 and the actuator rod 61. As the actuator rod 61starts to move upwardly, the clutch I20 moves about the pivot II 8, thusreleasing its grip on the actuator rod permitting the actuator rod toslide freely upwards through the traveler. If there is any tendency ofthe traveler to move upwardly with the actuator rod, the stop clutchlever H9 will grip the guide rod 66 and prevent any such movement.

In order to prevent undue strain on the operating mechanism, I haveprovided an actuator clutch release cam I 45 which is located in thepath of movement of the actuator clutch finger plate I25 adjacent thebottom limit of movement be supported by the book clamp 55. The clutchesof the traveler H0. By continued manipulation of the key I5 the travelermay be brought to a point adjacent the bottom angle 65. The release camI45 interposed in the path of movement of the actuator clutch I20disengages it from the actuator rod so that continued manipulations ofthe key cannot damage th mechanism. At this bottom position of thetraveler, the marker 22 will be carried down below the level of the bar56 of the book rack 65, and will be behind the vertical portion 57 ofthe book rack. Thus, when the easel is folded downwardly on the base,the

rack 55 will prevent the marker from swinging outward away from theplaten.

Although I have shown and described a'specific embodiment ofmy'invention, itis obvious that various changes can be made in the formand arrangement of the parts thereof without departing from the spiritof the invention. I, therefore, Wish to be limited only by the scope ofthe appended claims.

I claim:

1. In a copy holding machine having; an easel for supporting the copyand a, marker, wherein said easel and said marker are relatively movablefor indicating lines, in combination, actuating means for producing saidrelative motion in sub stantially equal steps in one direction,adjustable means for obtaining infinite variation. of the amplitude ofsaid steps between maximum and minimum'limits, and means connected withsaid actuating means for changing said relativ motion from a step bystep motion in one direction to a back and forth movement Withoutsubstantial progress in either direction.

2. In a copy holding machine having aneasel forsupporting the copy and amovable marker, in combination, actuating means for moving said markerin substantially equal steps in one direction, adjustable means forobtaining infinite variation of the amplitude of said steps betweenmaximum and minimum limits, and means connected with said actuatingmeans for changing said relative motion from a step by step motion inone direction to a back and forth movement without substantial progressin either direction.

3. In a copy holding machine having an easel for supporting the copy anda marker, wherein said easel and said marker are relatively movable forindicating lines, in combination, means including a reciprocatingactuator rod adapted normally for producing said relative motion step bystep in one direction, means for reciprocating said rod, means forvarying the length of stroke of said rod in any desired incrementbetween maximum and minimum limits, means including a one-way clutch forutilizing the movement of said actuator rod to obtain relative motionbetween said easel and said marker, and means for locking said clutch toobtain relative movement in both forwardand reverse directions.

4. In a copy holding machine having an easel for supporting the copy anda movable marker for indicating lines, in combination, means including areciprocating actuator rod adapted normally to move said marker step bystep in one direction, means for reciprocating said rod, adjustablemeans for varying the length of stroke members for moving the marker inboth directions with the rod.

6. In a copy holding machine having an easel for supporting the copy anda movable marker for indicating lines, in combination, afixed guide rod,a reciprocatable actuator rod positioned parallelto said guiderod, meansfor supporting said rods on said easel, means for reciprocating saidactuator rod, a traveler mounted on said rods for supportingsaid-marker, a one-way clutch carried by said traveler and arranged togrip said actuator rod as it is moved in one direction, a second onewayclutch carried by said traveler and adapted to grip said guide rod tolimit said traveler to movement in one direction, locking meansassociated with said clutches adapted to lock said first clutch to saidactuator rod and to lock saidsecond clutch in an inoperative positionsoas to allow the traveler to move in either direction as said actuatorrod is reciprocated, and means foradjusting the length of stroke of saidactuator rod.

'7. In a copy holding machine having an easel for-supportingthe copy anda movable marker for'indicating lines, in combination, a fixed guiderod, areciprooatable actuator rod positioned parallel to said guide rod,means for supporting said rods on said easel, means for reciprocatingsaid actuator rod, means for adjusting the length of stroke of saidactuator rod, a traveler mounted on said rods, a central bearing pinextending rearwardly of said traveler, a one-way actuator clutchcomprising a lever pivotally mounted on said pin, a transverse aperturein said level located; and proportioned to'loosely receive said actuatorrod, said lever normally being cocked at an angle to said actuator rod,a one-Way stop clutch comprising a lever pivotally mounted on said pinadjacent said actuator clutch lever and having an aperture located andproportioned to loosely receive said guide rod, said lever beingnormally cocked at an angle to said guide rod, clutch locking meanscomprising a lock finger formed integrally with said stop clutch leverand extending adjacent said actuator clutch lever, a

cam afiixed to'said traveler and arranged in the of said actuator rod,and means for locking said marker to said actuator rod whereby saidactuator rod causes said marker to move in both forward and reversedirections.

5. In a copy holding machine having an easel for supporting the copy anda marker movable with respect thereto for indicating lines, incombination, a reciprocating actuator rod, an actuating element, meansoperatively connecting the actuator rod to the actuating element forreciprocating said rod, said connecting means including membersrelatively adjustable for varying the length of stroke of said rod,means including a clutch operatively connecting the marker to saidactuator rod for moving the marker step by step in one direction, andmeans for locking said clutch to the actuator rod during the adjustmentof said adjustable connecting path of movement of said lock finger, saidcam surface being provided with a notch for receiving the lock finger ata predetermined point of said finger travel to yieldingly maintain saidfinger in the locked position whereby a predetermined displacement ofsaid stop clutch lever from its normal angular position causes said lockfinger to travel over said cam surface and jam against said actuatorclutch lever, thus locking said actuator clutch lever to said actuatorrod.

8. In a copy holding machine having an easel for supporting the copy anda movable marker, in combination, means for progressing said marker insubstantially equal steps including a clutch, and means fordisconnecting said clutch when said marker has reached a predeterminedlimit of travel.

9. In a copy holding machine having an easel for supporting the copy anda movable marker, in combination, actuating means for progressing saidmarker in substantially equal steps, a clutch interposed between saidactuating means and said marker, said clutch being movable with saidmarker and having a manually operable control member, and means carriedby said easel located in the path of movement of said control member forautomatically disconnecting said clutch when said marker has reached apredetermined limit of travel.

10. In a copy holding machine having an easel, in combination, a booksupport comprising a horizontal member extending substantially parallelto said easel, downwardly and rearwardly extending supporting membersjoined to each end of said horizontal member, and means attached to eachof said supporting members for yieldingly urging said supporting membertoward said easel.

11. In a copy holding machine having an easel and a marker movable withrespect thereto through a predetermined zone for indicating lines andwherein said marker is pivoted to enable it to swing outward from saideasel, in combination, a book support and a marker retaining meanscomprising a horizontal clamping member extending substantially parallelto said easel adjacent the lower end of said zone, said clamping memberbeing normally maintained in spaced relation to said easel, supportingmembers connected to said clamping member disposed below said zone andextending behind said easel, and resilient means connected with saidsupporting members and said easel for yieldingly urging said clampingmember toward said easel, whereby said book support is adapted to retainsaid marker adjacent said easel when said marker is at the lower limitof said zone.

12.- In a copy holding machine having an easel,

in combination, supporting means for holding on said easel a book to becopied, said supporting means comprising a horizontally extendingclamping portion, supporting members attached to said clamping memberadjacent either end thereof and extending rearwardly therefrom asubstantial distance and projecting behind said easel, a spring memberattached to each of said supporting members for yieldingly urging saidclamping member toward said easel, said spring members being independentof each other so that said clamping member may conform itself to uneventhickness of copy being held.

13. Adjustable means for changing the spacing of a line indicatorcomprising, in combination, a lever having a constant amplitude ofmotion, a slot in said lever extending longitudinally thereof, a slideblock movably mounted in said lever, linkage connecting said slide blockto said line indicator, a U shaped spring member mounted in said slideblock with the free ends of said U projecting through said slot, and aplurality of projections on said spring member, said projectionsnormally being frictionally engaged with the face of said lever forrestraining said block against displacement in said slot.

14. Adjustable means for changing the spacing ing of a line indicatorcomprising, in combination, a lever having a constant amplitude ofmotion, aslot in said lever extending longitudinally thereof, a slideblock movably mounted in said lever, linkage connecting said slide blockto said line indicator, a U shaped spring member mounted in said slideblock with the free ends of said U projecting through said slot, and apair of shoulders on each of said free ends of said U, said shouldersnormally engaging the face of said lever for locking said slide block ina selected position in said slot and being disengageable therefrom formoving said slide block to any other selected position,

PHILIP P. GLASSEY.

